Brooklyn on Christmas Eve and Christmas Day: Where?

I have family visiting town the week of Christmas, and I would like suggestions for Brooklyn restaurants that will be open for business those days. I've never spent the Christmas holiday in the city prior to this year, so I'm pretty clueless about what places are open.

Saul on Smith St does Feast of the 7 Fishes for Christmas Eve, which we really enjoyed a couple of years back. It's a pretty formal meal (small, intricate courses) as opposed to a rustic 7 Fishes meal, as you'd expect from Saul. Saul is excellent with fish, so its a great menu.